DQRs for Session: 120081 User:sarahtCompleted: 06-08-2009

Data Quality Reports for Session: 120081 User: saraht Completed: 06/08/2009

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020909.1	SGP/SONDE/C1 - Bad Temperature Sensor	sgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D020909.2	SGP/SONDE/C1 - Bad Temperature Sensor	sgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
D050510.1	SGP/SONDE/C1 - Surface pressure bad and other data noisy	sgpsondewnpnC1.b1
D051121.1	SGP/SONDE/C1 - Sonde RH values incorrect	sgpsondewnpnC1.b1
D060928.3	SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry	sgpsondewnpnC1.b1

DQRID : D020909.1

Start Date	Start Time	End Date	End Time
09/06/2002	1727	09/06/2002	1854

Subject:	SGP/SONDE/C1 - Bad Temperature Sensor
DataStreams:	sgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	It appears that the temperature sensor broke upon launch and therefore the reported temperature is approximately 40 degC too low.
Measurements:	sgpsondewnpnC1.a1: Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) Surface dew point temperature(dp) sgpsondewnpnC1.b1: Surface dew point temperature(dp) Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) sgpqmemwrcolC1.c1: Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde) sgplssondeC1.c1: Relative humidity inside the instrument enclosure(rh) Dry bulb temperature(tdry)

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DQRID : D020909.2

Start Date	Start Time	End Date	End Time
09/06/2002	0527	09/06/2002	0718

Subject:	SGP/SONDE/C1 - Bad Temperature Sensor
DataStreams:	sgplssondeC1.c1, sgpqmemwrcolC1.c1, sgpsondewnpnC1.a1, sgpsondewnpnC1.b1
Description:	It appears that the temperature sensor broke shortly after launch. Temperatures are offset by approxmiately (but not constantly) 40 degC.
Measurements:	sgpsondewnpnC1.a1: Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) Surface dew point temperature(dp) sgpsondewnpnC1.b1: Surface dew point temperature(dp) Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) sgpqmemwrcolC1.c1: Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde) sgplssondeC1.c1: Relative humidity inside the instrument enclosure(rh) Dry bulb temperature(tdry)

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DQRID : D050510.1

Start Date	Start Time	End Date	End Time
04/26/2005	1726	04/26/2005	1910

Subject:	SGP/SONDE/C1 - Surface pressure bad and other data noisy
DataStreams:	sgpsondewnpnC1.b1
Description:	I was checking this sounding because the surface pressure entered by the operator was considerably higher than that recorded by the TWHAPS and SMOS. I'm not sure why, but the pressure data are very noisy while the sonde is on the ground (which accounts for the incorrect surface pressure) and the RH data aloft do not look terrible but do not look great either.
Measurements:	sgpsondewnpnC1.b1: Surface dew point temperature(dp) base time(base_time) Mean Wind Speed(wspd) U-component(u_wind) Relative humidity inside the instrument enclosure(rh) lat(lat) Ascent Rate(asc) Retrieved pressure profile(pres) Wind Direction(deg) Wind Status(wstat) lon(lon) Dry bulb temperature(tdry) Time offset of tweaks from base_time(time_offset) V-component(v_wind) Dummy altitude for Zeb(alt)

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DQRID : D051121.1

Start Date	Start Time	End Date	End Time
04/13/2005	2346	04/15/2005	1732

Subject:	SGP/SONDE/C1 - Sonde RH values incorrect
DataStreams:	sgpsondewnpnC1.b1
Description:	RH values for all sondes launched during this time were incorrect due to a faulty Ground Check set which damaged or conditioned the RH sensor improperly.
Measurements:	sgpsondewnpnC1.b1: Surface dew point temperature(dp) Relative humidity inside the instrument enclosure(rh)

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DQRID : D060928.3

Start Date	Start Time	End Date	End Time
09/28/2006	1728	12/31/9999	2359

Subject:	SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry
DataStreams:	sgpsondewnpnC1.b1
Description:	The output precision of the following variables was increased 20060928 alt changed from 1m to 0.1m dp changed from 0.1degC to 0.01degC pres changed from 0.1 hPa to 0.01 hPa RH changed from 1%RH to 0.01%RH tdry changed from .1degC to 0.01degC Note that the increase in precision does not necessarily imply an increase in accuracy. Users are cautioned to continue to use their best scientific judgement when using these or any other data.
Measurements:	sgpsondewnpnC1.b1: Surface dew point temperature(dp) Dry bulb temperature(tdry) Relative humidity inside the instrument enclosure(rh) Retrieved pressure profile(pres) Dummy altitude for Zeb(alt)

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